Lochhead, W. 1900 The San José and other scale insects.. Bulletin of the Ontario Department of Agriculture 1900: 1-48.
Notes: Descriptive information on 8 common eastern North American scale insects; field key to 7; control recommendations.
Lochhead, W. 1900 The San José and other scale insects.. Bulletin of the Ontario Department of Agriculture 1900: 1-48.
Notes: Descriptive information on 8 common eastern North American scale insects; field key to 7; control recommendations.